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Thermodynamic Behaviour of Hydrogen-Powered Hypersonic Ramjets Flying Along Ideal Trajectories.

Reinkenhof, J. (1991) Thermodynamic Behaviour of Hydrogen-Powered Hypersonic Ramjets Flying Along Ideal Trajectories. In: IAF-91-277. IAF-Congress, 7. - 11. October 1991; Montreal; Canada.

Full text not available from this repository.

Abstract

A simulation model for the ramjet propulsion describing the strong coupling of thermodynamic and flightmechanic parameters is presented.The ideal trajectory is subdivided into segments each one representing the solution of a boundary value problem with additionalconstraints for dynamic pressure and minimum fuel consumption. The thermodynamic model of the ramjet comprises a precompression due to the angle of attack, a compression by a multiple shock system, a subsonic diabatic flow and an expansion in a Laval nozzle and along an unsymmetric expansion ramp. The thrust vectoring is realized by analternating control of either geometrics of the diffuser and the Laval nozzle or the angle of attack. Typical numerical results for the ramjet mode of a hydrogen powered TSTO reference vehicle are discussed. Limiting values of the main parameters needed for design purposes of future ramjet propulsion systems and for test stands are given.

Item URL in elib:https://elib.dlr.de/24740/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1991, pages=10,
Title:Thermodynamic Behaviour of Hydrogen-Powered Hypersonic Ramjets Flying Along Ideal Trajectories.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Reinkenhof, J.UNSPECIFIEDUNSPECIFIED
Date:1991
Journal or Publication Title:IAF-91-277
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Event Title:IAF-Congress, 7. - 11. October 1991; Montreal; Canada
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Institut für Chemische Antriebe und Verfahrenstechnik
Deposited By: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 05:33

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